When she visited Botswana and South Africa in December, Bilson, 28, was impressed by the diamond mining industry's efforts to improve the countries' quality of life, according to People.

The former "O.C." star joined forces with InStyle to design a bracelet that will benefit the Diamond Empowerment Fund, a non-profit organization to improve education in Africa founded by Russell Simmons and his ex-wife Kimora Lee Simmons.